heading

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. The title, subtitle, or topic that stands at the top or beginning, as of a paragraph, letter, or chapter.
2. n. The course or direction in which a ship or aircraft is moving.
3. n. A gallery or drift in a mine.
4. n. The end of a gallery or drift.

Century Dictionary and Cyclopedia

1. n. The act or process of providing with a head: as, the heading of a pin or of a barrel.
2. n. That which stands at the head; especially, a title; a caption: as, the heading of a paper.
3. n. Material to form a head, as timber for forming the heads of casks.
4. n. The foam on liquor.
5. n. A preparation of equal parts of alum and green vitriol, used in brewing.
6. n. In dressmaking: The upper edge of a flounce or ruffle which projects above the line stitched on the dress, etc.
7. n. Any narrow braid or trimming placed at the head of a flounce, ruffle, fringe, or other trimming.
8. n. In lace-making, the edge of the lace on the side sewed to the dress, whether as a part of the design or in the form of separate braid.
9. n. In fireworks, the particular device of a rocket, especially when used as a signal: as, a star-heading.
10. n. A driftway or passage excavated in the line of an intended tunnel, forming a gullet in which the men work.
11. n. In coal-mining: In England, often used as synonymous with head.
12. n. plural In placer-mining, the mass of gravel above the head of the sluice.
13. n. In brickwork, a row or course of headers; a heading-course.
14. n. The molding above a door or a window; a head-mold.
15. n. Homespun cloth.
16. n. See the extract.

Wiktionary

1. v. present participle of head.
2. n. The title or topic of a document, article, chapter etc.
3. n. nautical The direction into which a seagoing or airborne vessel's bow is pointing (apparent heading) and/or the direction into which it is actually moving relative to the ground (true heading)

GNU Webster's 1913

1. n. The act or state of one who, or that which, heads; formation of a head.
2. n. That which stands at the head; title.
3. n. Material for the heads of casks, barrels, etc.
4. n. A gallery, drift, or adit in a mine; the vein above a drift.
5. n. The end of a drift or gallery; also, the working face at the end of a tunnel, gallery, drift, or adit from which the work is advanced.
6. n. (Sewing) The extension of a line ruffling above the line of stitch.
7. n. (Masonry) That end of a stone or brick which is presented outward.

WordNet 3.0

1. n. the direction or path along which something moves or along which it lies
2. n. a line of text serving to indicate what the passage below it is about
3. n. a horizontal (or nearly horizontal) passageway in a mine